package cn.hs.ph.dao.impl;

import cn.hs.ph.dao.CommunityDao;
import cn.hs.ph.entity.Community;
import cn.hs.ph.util.JDBCDruidUtil;

import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;

public class CommunityDaoImpl implements CommunityDao {
    @Override
    public int insert(Community community) {
        return 0;
    }

    @Override
    public int delete(int communityId) {
        return 0;
    }

    @Override
    public int update(Community community) {
        return 0;
    }
    // map : 保存的数据： communityName：..   startTime:..  endTime:.. pageNum:.. pageSize:..
    @Override
    public List<Community> selectAll(Map<String, String> map) {
        List<Community> list = new ArrayList<>();
        // 分页查询  模糊查询  时间范围查询  -- 动态sql
        String sql = "select * from community where 1=1 ";
        List params = new ArrayList<>();
        // 判断如果map集合中有communityName则该sql需要进行模糊查询
        String communityName = map.get("communityName");
        if(communityName!=null && !"".equals(communityName)){  // 姓名不为null和空字符串
            sql += " and communityName like ? ";
            params.add("%"+communityName+"%");
        }
        // 判断是否需要进行日期范围查询
        String startTime = map.get("startTime");
        if(startTime!=null && !"".equals(startTime)){
            sql += " and createTime between ? and ? ";
            params.add(startTime);
            params.add(map.get("endTime"));
        }
        // 判断是否有分页操作
        String pn = map.get("pageNum");
        if(pn!=null && !"".equals(pn)){
            sql += " limit ?,? ";
            int pageNum = Integer.parseInt(pn);
            int pageSize = Integer.parseInt(map.get("pageSize"));
            params.add( (pageNum-1)*pageSize );
            params.add( pageSize );
        }
        // 查询
        Object[] obj = params.toArray();
        ResultSet res = JDBCDruidUtil.query(sql, obj);
        while(true){
            try {
                if (!res.next()) break;
                Community community = new Community(
                        res.getInt(1),
                        res.getString(2),
                        res.getString(3),
                        res.getString(4),
                        res.getString(5),
                        res.getString(6),
                        res.getString(7),
                        res.getString(8),
                        res.getDate(9),
                        res.getInt(10),
                        res.getInt(11),
                        res.getString(12),
                        res.getInt(13),
                        res.getInt(14),
                        res.getString(15)
                );
                list.add(community);
            } catch (SQLException e) {
                throw new RuntimeException(e);
            }
        }
        JDBCDruidUtil.close();
        return list;
    }

    @Override
    public int selectCount(Map<String, String> map) {
        int count = 0;
        // 分页查询  模糊查询  时间范围查询  -- 动态sql
        String sql = "select count(1) from community where 1=1 ";
        List params = new ArrayList<>();
        // 判断如果map集合中有communityName则该sql需要进行模糊查询
        String communityName = map.get("communityName");
        if(communityName!=null && !"".equals(communityName)){  // 姓名不为null和空字符串
            sql += " and communityName like ? ";
            params.add("%"+communityName+"%");
        }
        // 判断是否需要进行日期范围查询
        String startTime = map.get("startTime");
        if(startTime!=null && !"".equals(startTime)){
            sql += " and createTime between ? and ? ";
            params.add(startTime);
            params.add(map.get("endTime"));
        }
        // 查询
        Object[] obj = params.toArray();
        ResultSet res = JDBCDruidUtil.query(sql, obj);
        while(true){
            try {
                if (!res.next()) break;
                count = res.getInt(1);
            } catch (SQLException e) {
                throw new RuntimeException(e);
            }
        }
        JDBCDruidUtil.close();
        return count;
    }
}
